Recipes:

TBA

Percentages: (Milage may vary)

FlavourArt average strength needed: 2-15%
Spicy Cinnamon Candy: ?%, 1/5
Butterscotch: 10-15%, 5/5
Cappuccino: 10-15%, 5/5
Cherry: 10-15%, 5/5
Chocolate: 5-10%, 5/5
Citrus Mix: 10-15%, 5/5
Cocoa: ~5%, 5/5
Coconut: 5-10%, 5/5
Concord Grape: 10-15%, 5/5
Cookie: 5-10%, 5/5 <-- Recommended for combining with other flavors, not standalone.
Mango: ~10%, 5/5
Panettone: 5-10%, 4/5
Pear: 10-15%, 5/5
Peppermint: 5~%, ?/5
Pineapple: ~10%, 5/5
Strawberry: 10-15%, 5/5
Vienna Cream: 5-10%, 5/5
Whipped Cream: ~15%, 4.5/5 <-- Recommended for combining with other flavors, not standalone.

Following %'s taken from FlavourArt's site as suggestions for flavoring usage, however many people here report using some of these at up to 15% for good flavor. User recommendations here will be added in (parentheses):
Perique Black 1%
Cuban Supreme 2%
Dark Vapure 2.5%
Mellow Sunset 2%
Burley 3%
Latakia 2%
Virginia 2%
Maxboro Ultimate 2%
Cowboy blend 1%
Camel Ultimate 2%
Shade 2%
Desert Ship Blend 1%
Torrone 4%, 5/5
Coffee Espresso 2%
Blackberry 1%
Apple Pie 3%
Hazelnut 2% (~4%), 5/5
Chocolate 4%, 5/5
Vanilla 2%, 5/5
Tiramisu 3% (5-8%), 5/5
Anise 1%
Peppermint 3%
Spearmint 3%
Menthol 3%
Licorice 4%
Cinnamon Ceylon 3%
Black Cherry 3%
Mad Fruit (Red Bull)15%
RY4 20 -25%
Hypnotic Mist 5%
Oba Oba 7%
Zen Garden 5%
Yoghurt 6%